Ford Transit Custom Rear Door Catch Lock Mechanism Left N/S BK21-V43287-AG

Ford Transit Custom Rear Door Catch Lock Mechanism Left N/S is an original component from the Locks and Latches category, designed for installation in the rear left section of the vehicle body. It ensures secure locking of the door panel, stable operation with the factory opening system, and predictable performance during the daily use of a commercial vehicle.

Specifications and technical data

• SKU: BK21-V43287-AG-1
• Mark: Ford
• Condition: Used
• OEM Part Number: BK21-V43287-AG
• Substitutable numbers: BK21-V43287-AG, BK21V43287AG, 1821972
• Location on the vehicle: Rear, Left
• Part type: Door Lock
• Category: Exterior Locks & Lock Hardware

Purpose and function of the mechanism

The presented mechanism is dedicated to the rear left door panel of the Ford Transit Custom and is responsible for the mechanical locking and unlocking of the door on the vertical axis. The component works with the factory opening system, ensuring proper closing of the panel, reduction of play, and stable retention of the door in the closed position even during intensive use of the commercial vehicle. A properly selected rear door lock is crucial for the security of the transported cargo, the tightness of the cargo area, and the comfort of the vehicle user. Using an original Ford solution helps maintain consistency with other door system components.

Construction and fitment for Ford Transit Custom

Ford Transit Custom Rear Door Catch Lock Mechanism Left N/S has been designed as a part structurally compatible with the factory door geometry. The appropriate placement of mounting points and lever kinematics allows for precise fitting with the door sheet metal, catches, and control rods. This makes it possible to maintain the correct closing line and even pressure on the seals. The location on the vehicle in the rear left part of the body facilitates the identification of the correct component during replacement. In practice, this means that the mechanism is prepared to work in a specific door panel, which minimizes the risk of problems with installation and adjustment.

Benefits of using an original lock

Using an original lock mechanism in a Ford Transit Custom allows for maintaining the factory operating parameters of the door. The most important advantages include:

• Stable operation of the locking system – predictable closing and opening of the door, without excessive resistance.
• Better fitment to factory rods and handles, which limits the need for additional modifications.
• Consistency with other elements of the locking system, which promotes uniform wear of components.
• The ability to maintain the original operating characteristics of the door after repair or modernization. As an element from the Locks and Latches category, this mechanism is an essential component of the entire cargo area security system, affecting both functionality and vehicle user comfort.

Characteristics of the used part

The offered mechanism comes from the used parts segment, which is a beneficial solution for users looking for a technically sound, yet economical component. A properly selected used part allows for reducing service costs while maintaining the correct functionality of the door system. If you are considering a wider use of aftermarket elements in your vehicle, it is worth checking out the guide: is it worth investing in used car parts, where, among other things, the selection of components and compatibility issues between different body versions are discussed.

Application in service and vehicle modernization

The Ford Transit Custom rear left door lock mechanism will work well both for typical repairs after operational wear and for body and paint work following damage to the rear part of the body. Replacing a worn lock with a functional component allows you to:

• restore proper closing of the door panel,
• reduce unwanted play and noise in the rear door area,
• increase the sense of security for the transported cargo. If you are planning comprehensive maintenance of the locking system in your vehicle, it is worth verifying other elements from the Locks and Latches group at the same time to ensure consistent and long-lasting operation of the entire system.